SSL: disabled shutdown when there are buffered data. This fixes "SSL_shutdown() failed (SSL: ... bad write retry)" errors as observed on the second SSL_shutdown() call after SSL shutdown fixes in 09fb2135a589 (1.19.2), notably when HTTP/2 connections are closed due to read timeouts while there are incomplete writes.

make -f misc/GNUmakefile release

the required tools:
*) xsltproc to build CHANGES,
*) xslscript.pl ( http://hg.nginx.org/xslscript ) to build XSLTs
   from XSLScript sources.


make -f misc/GNUmakefile icons

the required tool:
*) netpbm to create Win32 icons from xpm sources.